How to wire this correctly
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=63705
Printed Date: May 13, 2024 at 8:14 PM
Topic: How to wire this correctly
Posted By: dday
Subject: How to wire this correctly
Date Posted: October 03, 2005 at 9:41 AM
I'm wanting to add a second set of Alpine type R SPR-17LS's to the front doors of my 02' Chevy Avalanche. I currently have one set already in the doors powered by a Rockford 600.4 which is 75X4 at 4 ohms. I am using the front 2 channels for the front doors and the back to for the type R coax in the rear doors. The question I have can I run the second set of 6.5s on that front channel? On alpines web site it says these speakers are 4 ohm but I don't know if that is 4 ohm each or the 2 together with the crossover produces a 4 ohm load? Can I run the second set in series of how should I wire the second set? I do have another amp that I can add but will have to upgrade the power wire to the battery and would like to not have to do this if I can get around it. Thanks in advance.
Replies:
Posted By: sneakycyber
Date Posted: October 03, 2005 at 9:52 AM
Thats 4 ohm each speaker, as long as you dont exceed the output ohm level for the amp you should be ok. What size power wire are you running currently? -------------
Posted By: dday
Date Posted: October 03, 2005 at 10:30 AM
Currently I have 4 gauge running to a distrobution block that breaks out 4-8 gauge. Along with that RF 600.4 I have a JL 500/1 and would be adding a RF power 250.2 for around 1100 watts which per this https://www.the12volt.com/info/recwirsz.asp I would need a 2 awg to the battery which I would actually use 0/1 because it's easier to find. Probably the smart thing to do would be to just put the new amp in, run the 2 sets of type R's in the front off of the 600.4 and the rears off the 250.2 and be done with it? Any other suggestions as to how this can be done. I have also thought about just adding another 6.5 to the front doors with out the tweeter but I think I'll still be in the same situation? Thoughts?
Posted By: DYohn
Date Posted: October 03, 2005 at 10:30 AM
Why in the world do you want to add a second set of 6.5" coaxials to your doors? I can see nothing but problems caused by this plan unless you set it up really carefully. What's your intention? ------------- Support the12volt.com
Posted By: dday
Date Posted: October 03, 2005 at 10:45 AM
DYohn] wrote:
hy in the world do you want to add a second set of 6.5" coaxials to your doors? I can see nothing but problems caused by this plan unless you set it up really carefully. What's your intention?
The SPR-17LS are seperates the LP are coax, I want to add another set of seperates to the front doors. I do have a set of LP's in the rear doors already but have no intention in adding another set, they are only rear fill anyway. My intentions are to get more volume out of the system, it sounds great just isn't very loud. I figure by adding another set of speakers and somemore power I can get it loud enough to hear the system without cranking it when I'm on the highway with the windows down. Right now this is just one of the 100 other thoughts I have for this truck so please if you have any suggestions feel free.
Posted By: DYohn
Date Posted: October 03, 2005 at 11:21 AM
Nah, adding a second set of speakers just to make it louder is not a good idea. You could even end up making it less loud due to cancellations. Plus, doubling the speakers with the same power to each will only increase your overall SPL by 3 db or so. Your best bet is simply to replace the speakers with some that are more efficient so you can achieve higher SPL levels. The SPR-17LS can be used as a coax, can it not? In any case, I can't find the efficiency rating for this speaker, but the best thing you could do is locate a comp set rated at greater than 90db SPL. Also I believe your Punch amplifier will handle a 2-ohm stereo load, so you could use 2-ohm speakers if you really want simply more output. Or better yet, re-position your mounting location so the speakers are closer to your ear level and they will seem louder. ------------- Support the12volt.com
Posted By: dday
Date Posted: October 03, 2005 at 11:32 AM
Actaully I was wondering about the sensitivity on those, couldn't find it either. You're right after doing alot of work on cost to add the amp with new wire and everything else it might be more cost effective to just find a better speaker. I really like the sound of the alpines they just don't have the volume I'd expected. Bummer, maybe I can just shell out for the Boston pro series I really wanted in the first place. Oh well. Not sure about using those alpines as coax, hadn't thought about. Thanks for your help.
Posted By: dday
Date Posted: October 03, 2005 at 11:56 AM
I'm going to do a layer of Dynamatt extreme over both doors, think this will help?
Posted By: DYohn
Date Posted: October 03, 2005 at 12:33 PM
dday]I wrote:
m going to do a layer of Dynamatt extreme over both doors, think this will help?
Probably a LOT. :) ------------- Support the12volt.com
Posted By: dday
Date Posted: October 03, 2005 at 12:34 PM
Cool! I'll give it a try, thanks again.
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